package com.example.demo.service;

import lombok.extern.slf4j.Slf4j;
import org.slf4j.Logger;
import org.slf4j.LoggerFactory;
import org.springframework.stereotype.Controller;
import org.springframework.stereotype.Service;
import org.springframework.web.bind.annotation.RequestMapping;
import org.springframework.web.bind.annotation.ResponseBody;


@Controller
@ResponseBody
@Slf4j //替代了之前需要通过 LoggerFactory.getLogger操作
public class UserService {
    @RequestMapping("/sayhi2")
    public void sayHi2(){
        log.trace("我是trace");
        log.debug("我是debug");
        log.info("我是info");
        log.warn("我是warn");
        log.error("我是error");

    }



}
